Home / 186,172.74-279,166.86-66,211.71

Finding the Fourth Proportional to 186,172.74, 279,166.86 and 66,211.71

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Solution

The fourth proportional to 186,172.74, 279,166.86 and 66,211.71 is: 99,284.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,172.74 : 279,166.86 = 66,211.71 : x
  2. Step 2: Convert to fraction form
    186,172.74/279,166.86 = 66,211.71/x
  3. Step 3: Cross multiply
    186,172.74x = 279,166.86 × 66,211.71
  4. Step 4: Simplify right side
    186,172.74x = 18,484,115,175.93
  5. Step 5: Solve for x
    x = 18,484,115,175.93/186,172.74
  6. Step 6: Final answer
    x = 99,284.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.